Quote Originally Posted by derektm View Post
With HT off temps go down drastically, which may allow for more overclocking headroom. With that said, I still couldn't get 4GHz stable on it even with 1.4v. Hopefully you'll have better luck than me. I always get the worst of the worst chips!
I don't think temps are the limiting factor on these i7's unless you are either running the Intel stock cooler or using a real high vcore. I'm at 3.8Ghz with 1.3v testing right now and Prime95 Blend isn't even pushing me over 65C with aircooling. I still stay under 80C with 4Ghz and 1.4v+ while running LinX as well.

Personally I think the limiting factor is the memory controller and it's becoming unstable at high clocks. I know it has to be something like that in my case because I can get 190x21 stable but 211x19 won't work for me and the lockups and BSOD's look memory related.

I've also noticed that a lot of the people with the highest overclocks are running 3x1GB of RAM instead of 3x2GB. Would be interesting to compare overclocks between running 3x1GB and 3x2GB to see what if any difference there is. Also note that some people are running Vista x64 while others are running XP or Vista 32-bit, especially if they only have 3 gigs of RAM. That does make a difference because it's going to be harder to get stable on Vista x64 due to the 64-bit excecution.